Study Guide
Photosynthesis Unit,
Biology Standard 1f
1. What process is
shown in the figure to
the right?
1. What process is
shown in the figure to
the right?
Photosynthesis
2. What structure
(organelle) is shown in
the figure to the right?
2. What structure
(organelle) is shown in
the figure to the right?
Chloroplast
3. Where, in the
chloroplast, does the
light reaction take
place?
3. Where, in the
chloroplast, does the
light reaction take
place?
Thylakoid Membrane, B
4. Where, in the
chloroplast, does the
light-independent
reaction take place?
4. Where, in the
chloroplast, does the
light-independent
reaction take place?
Stroma, A
5. What are the 3
reactants (inputs) of
photosynthesis?
5. What are the 3
reactants (inputs) of
photosynthesis?
1. Light
2. Water
3. CO2
6. What are the 2
products (outputs) of
photosynthesis?
6. What are the 3
products (outputs) of
photosynthesis?
1. Oxygen
2. Sugars
7. What is the overall
equation of
photosynthesis?
7. What is the overall
equation of
photosynthesis?
8. What is another
name for the Light
Phase?
8. What is another
name for the Light
Phase?
Light Dependent Phase
Light Dependent Reaction
Light Reaction
9. What are other
names for the Dark
Phase?
9. What are other
names for the Dark
Phase?
Light INDEPENDENT Phase
Light INDEPENDENT Reaction
Dark Reaction
Calvin Cycle
10. ________________ is
the major lightabsorbing pigment in
plant photosynthesis.
10._CHLOROPHYLL_ is
the major lightabsorbing pigment in
plant photosynthesis.
11. ____________
(autotrophs/heterotrophs)
produce the chemical
energy they need for
metabolism through
photosynthesis.
11. _____autotrophs_______
produce the chemical
energy they need for
metabolism through
photosynthesis.
12. The waste product
that is released during
photosynthesis into
the atmosphere
is___________(carbon
dioxide/oxygen/nitrogen)
12. The waste product
that is released during
photosynthesis into
the atmosphere
is_oxygen
13. A student put together two different
experimental setups as shown to the left.
What might the student be trying to test?
The student is probably trying to test the
effect of ____________ dioxide concentration
on plants.
13. A student put together two different
experimental setups as shown to the left.
What might the student be trying to test?
The student is probably trying to test the
effect of _CARBON__ dioxide concentration
on plants.
14. If the student placed the
experimental setup in the shade
for 2 days, what would happen to
the amount of sugar
produced?________________________
14. If the student placed the
experimental setup in the shade
for 2 days, what would happen to
the amount of sugar
produced?_DECREASE____
Fill-in the following paragraph:
Biologists generally agree that the process of
photosynthesis can be divided into two major reactions.
These are often referred to as the light and dark reactions.
During the light reaction molecules of (15)__________ are
"split," producing hydrogen atoms and a gas called
(16)__________. During this reaction, extra energy is stored in
molecules of (17)_____________. The dark reaction requires no
light because it is powered by the energy molecules made
in the light reaction. A six-carbon compound known as
(18)_______________ is formed during this reaction.
Fill-in the following paragraph:
Biologists generally agree that the process
of photosynthesis can be divided into two
major reactions. These are often referred to
as the light and dark reactions. During the
light reaction molecules of (15)__H2O___ are
"split," producing hydrogen atoms and a gas
called (16)___O2____. During this reaction,
extra energy is stored in molecules of
(17)___ATP/NADPH____. The dark reaction
requires no light because it is powered by
the energy molecules made in the light
reaction. A six-carbon compound known as
(18)__C6H12O6____ is formed during this
reaction.
19. Green plants appear green to
human eyes because mainly red
and blue wavelengths are
________________
(absorbed/reflected), while green
is __________________
(absorbed/reflected).
19. Green plants appear green to
human eyes because mainly red
and blue wavelengths are
________absorbed________ while
green is ______reflected_____
20. What waste product of the
light dependent reaction of
photosynthesis is released
and does not participate
further in photosynthesis?
______________ (ATP/ NADPH/ H2O/ O2)
20. What waste product of the
light dependent reaction of
photosynthesis is released
and does not participate
further in photosynthesis?
O2
21. In the diagram to the
right, which letter shows the
part of the chloroplast where
the Calvin
cycle takes place? _________
21. In the diagram to the
right, which letter shows the
part of the chloroplast where
the Calvin
cycle takes place?
STROMA, A
22. In this diagram of
a chloroplast, which
letter is pointing to
the stroma? _____
22. In this diagram of
a chloroplast, which
letter is pointing to
the stroma? _A_
23. The cells in _____________
(grass / muscles/ apples /
potatoes) would have more
chloroplasts than cells in the
others.
23. The cells in grass would
have more chloroplasts than
cells in the others.
24. In addition to ATP,
_______________
(water/NADPH/glucose) is
used as a source of energy
in the photosynthesis
reaction.
24. In addition to ATP,
____NADPH____ is used as a
source of energy in the
photosynthesis reaction.
True or False?
25.
________Photosynthesis
takes place at a faster
rate in green light.
True or False?
25.
____F___Photosynthesi
s takes place at a
faster rate in green
light.
True or False?
26. ________
Photosynthesis
converts light energy
into chemical energy.
True or False?
26. _T_ Photosynthesis
converts light energy
into chemical energy.
True or False?
27. __ Photosynthesis
converts chemical
energy into light
energy.
True or False?
27. _F_ Photosynthesis
converts chemical
energy into light
energy.
True or False?
28. ________
Photosynthesis can be
performed in total
darkness.
True or False?
28. __T/F____
Photosynthesis can be
performed in total
darkness.
This isn’t a fair question, because we
know the Calvin cycle happens at night.
Plants need some sort of light.
29. ___________________
are organisms that
cannot make their
own food and must
obtain energy from
the foods they eat.
29. _HETEROTROPHS_
are organisms that
cannot make their
own food and must
obtain energy from
the foods they eat.
30. The figure to the right shows
how a student collected the gas
produced (given off) from a plant
in bright sunlight at a
temperature of 27 oC. The gas
being collected is probably
________________.
30. The figure to the right shows
how a student collected the gas
produced (given off) from a plant
in bright sunlight at a
temperature of 27 oC. The gas
being collected is probably
___OXYGEN__.
31. What is a
granum?
31. What is a
granum?
A stack of thylakoids, B
32. Where in the
chloroplast is
chlorophyll found?
32. Where in the
chloroplast is
chlorophyll found?
Thylakoid Membrane
33. In the diagram to the
right, the plant was exposed
to several different colors of
light. If all the light
intensities were the same,
under which color of light
would OXYGEN be produced
at the SLOWEST rate?
33. In the diagram to the
right, the plant was exposed
to several different colors of
light. If all the light
intensities were the same,
under which color of light
would OXYGEN be produced
at the SLOWEST rate?
GREEN
Plants mostly REFLECT green light.
STUDY!!